<div index="<?php echo $stid ?>" class="control-group">
	<label class="control-label" for="year">Nam:</label>
	<div class="controls">
    <div class="input-append">
		<select id="year" name="year" data-rel="chosen">
            <option></option>
            <?php foreach($slist as $row){ ?>
                <option value="<?php echo $row['survey_id'];?>"> 
                    <?php echo $row['start_date'].'-'.$row['survey_name'];?> 
                 </option>
            <?php }?>
		</select>
        <input type="hidden" id="yea" name="yea"/>
        <input type="hidden" id="stid2" name="stid2"/>
    </div>
   </div>
</div>

<script type="text/javascript" >
    $(document).ready(function(){
        $('#year').change(function(){
            $('#yea').val($('#year').val());

        });
    });
</script>